The values of items are based on Grand Exchange prices. Prices were previously based on the store or alchemy value of the items. However, since an update on 19 April 2011, the store or alchemy value of items is no longer used. Since the update on 19 April 2011, many stackable items, such as coins, are always kept, including most basic items, such as low level armour, runes, seeds, food, and quest and untradeable items. Death mechanics were updated again on 26 May 2015.